I just purchased this motor a few months ago and found out it doesn't want to work in my 02 800. For some reason the 01 800 had diffrent wireing and th guy I have working on it said its to much of a pain and expensive to make my lights, instuments and mainly my reverse work again. I ran the motor for about 40 miles and it pulls real hard. I ran a 900 king cat with SLP all the way around and stayed right next to him. With my other motor he always pulled away from me. The guy I purchased it from hit a tree after only 200 miles on the motor. The Rk tek kit is suppose to be more reliable than the stock and you can read about it here http://2strokeheads.com/drop-in.htm The kit costs $860 with the updated mpem. I also have the MPEM to go with this motor and the carbs. I may sell the carbs seperate. price $1400 email me if interested rickcoleman@starband.net